Just last month, SweetWater 420 Festival made its initial lineup announcement featuring many of the jam scenes heaviest hitters. Earlier this morning, the festival announced the addition of Ween, Lettuce, Dirty Heads, Savoy its 2017 lineup. These bands join an already stacked bill which includes Trey Anastasio Band, Widespread Panic, Slightly Stoopid, Trombone Shorty & Orleans Avenue, Dark Star Orchestra, Anders Osborne, and many more at Centennial Olympic Park in Atlanta on April 21st - 23rd. The festival plans to add more artists to the lineup in the near future, so stay tuned for more updates!